JP2016195436A - 通信システムにおけるフィードバック情報を送受信する方法及び装置 - Google Patents
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Abstract
Description
1.モード1−0:RI、広帯域CQI(wCQI)
2.モード1−1:RI、wCQI、広帯域PMI(wPMI)
3.モード2−0:RI、wCQI、サブ帯域CQI(sCQI)
4.モード2−1:RI、wCQI、wPMI、sCQI、sPMI
複数のセルを含む測定セットがUEに割り当てられる場合に、この測定セットに関するCSIフィードバックは、大きく2種類の方法で考えることができる。1つは、測定セットのセル別に異なるCSIフィードバックモード及び異なるタイミングでCSIのフィードバックを実行する方法である。例えば、測定セットが{Cell−1、Cell−2、Cell−3}である場合に、フィードバックモード及びタイミングは、セル当たりのCSIフィードバック方法で各セルに割り当てられる。すなわち、例1で説明した割り当て方法を使用する。
■ Cell−1:(モード1−1、Npd=10、MRI=2、NOFFSET,CQI=0、NOFFSET,RI=−1)
■ Cell−2:(モード1−1、Npd=10、MRI=2、NOFFSET,CQI=2、NOFFSET,RI=−1)
■ Cell−3:(モード1−1、Npd=10、MRI=2、NOFFSET,CQI=4、NOFFSET,RI=−1)
本発明の第2の実施形態は、DS方式を使用するセルラー移動通信システムにおいて、CoMP UEが割り当てられたフィードバックモード及び割り当てられたタイミングでフィードバックを送信する方法を提供する。
■ フィードバック割り当て1:(モードA、Npd=10、MRI=2、MPI=2、NOFFSET,CQI=0、NOFFSET,RI=−1、NOFFSET,PI=−1、{Cell−1、Cell−2、Cell−3、Cell−4})
■ フィードバック割り当て2:(モードA、Npd=10、MRI=2、MPI=2、NOFFSET,CQI=3、NOFFSET,RI=−1、NOFFSET,PI=−1、{Cell−1、Cell−2、Cell−3、Cell−4})
■ PI期間=RI_period×MPI
■ PIオフセット=RI_offset+NOFFSET,PI
■ PIの期間=wCQI_period×MPI
■ PIオフセット=wCQI_offset+NOFFSET,PI
■ 最も最近のフィードバックRI値
■ 固定されたRI値(ランクが1に設定される)
■ 最近にフィードバックされたRI値と新たなPIに対する最大ランク値との間の最小値
■ フィードバック割り当て1:(モードA、Npd=10、MRI=2、MPI=2、NOFFSET,CQI=0、NOFFSET,RI=−1、NOFFSET,PI=−1、{Cell−1、Cell−2})
■ フィードバック割り当て2:(モードA、Npd=10、MRI=2、MPI=2、NOFFSET,CQI=3、NOFFSET,RI=−1、NOFFSET,PI=−1、{Cell−3、Cell−4})
■ フィードバック割り当て1:(モード1−1、Npd=10、MRI=2、NOFFSET,CQI=0、NOFFSET,RI=−1、{Cell−1})
■ フィードバック割り当て2:(モードA、Npd=10、MRI=2、NOFFSET,CQI=3、NOFFSET,RI=−1、{Cell−2、Cell−3、Cell−4})
本発明の第3の実施形態は、DS/DB方式を使用するセルラー移動通信システムにおけるCoMP UEで割り当てられたフィードバックモード及び割り当てられたタイミングでフィードバックを送信する方法を提供する。
■ DB−CQI_CW1=DS−CQI_CW1+delta_DB−CQI
■ DB−CQI_CW2=DS−CQI_CW2+delta_DB−CQI
■ DB−CQI_CW1=DS−CQI_CW1+delta_DB−CQI_CW1
■ DB−CQI_CW2=DS−CQI_CW2+delta_DB−CQI_CW2
■ フィードバック割り当て1:(モードB、Npd=10、MRI=2、MPI=2、NOFFSET,CQI=0、NOFFSET,RI=−1、NOFFSET,PI=−1、{Cell−1、Cell−2、Cell−3、Cell−4})
■ フィードバック割り当て2:(モードB、Npd=10、MRI=2、MPI=2、NOFFSET,CQI=3、NOFFSET,RI=−1、NOFFSET,PI=−1、{Cell−1、Cell−2、Cell−3、Cell−4})
■ フィードバック割り当て1:(モードC、Npd=10、MRI=2、MPI=2、H’’=2、NOFFSET,CQI=0、NOFFSET,RI=−1、NOFFSET,PI=−1、{Cell−1、Cell−2、Cell−3、Cell−4})
■ フィードバック割り当て2:(モードC、Npd=10、MRI=2、MPI=2、H’’=2、NOFFSET,CQI=3、NOFFSET,RI=−1、NOFFSET,PI=−1、{Cell−1、Cell−2、Cell−3、Cell−4})
■ フィードバック割り当て1:(モードD、Npd=5、MRI=2、MPI=2、J=3(10MHz)、K=1、H’’=2、NOFFSET,CQI=0、NOFFSET,RI=−1、NOFFSET,PI=−1、{Cell−1、Cell−2、Cell−3、Cell−4})
■ フィードバック割り当て2:(モードD、Npd=5、MRI=2、MPI=2、J=3(10MHz)、K=1、H’’=2、NOFFSET,CQI=3、NOFFSET,RI=−1、NOFFSET,PI=−1、{Cell−1、Cell−2、Cell−3、Cell−4})
本発明の第4の実施形態は、JT方式を使用するセルラー移動通信システムにおいて、CoMP UEが割り当てられたフィードバックモード及び割り当てられたタイミングでフィードバックを送信する方法を提供する。
■ フィードバック割り当て1:(モードA、Npd=10、MRI=2、MPI=2、NOFFSET,CQI=0、NOFFSET,RI=−1、NOFFSET,PI=−1、{Cell−1、Cell−2、Cell−3、Cell−4})
■ フィードバック割り当て2:(モードE、Npd=10、MRI=2、MPI=2、NOFFSET,CQI=3、NOFFSET,RI=−1、NOFFSET,PI=−1、{Cell−1、Cell−2、Cell−3、Cell−4}、フィードバック割り当て1)
■ フィードバック割り当て1:(モードA、Npd=10、MRI=2、MPI=2、NOFFSET,CQI=0、NOFFSET,RI=−1、NOFFSET,PI=−1、{Cell−1、Cell−2、Cell−3、Cell−4})
■ フィードバック割り当て2:(モードF、Npd=10、MRI=2、MPI=2、H’’=2、NOFFSET,CQI=3、NOFFSET,RI=−1、NOFFSET,PI=−1、{Cell−1、Cell−2、Cell−3、Cell−4}、フィードバック割り当て1)
■ フィードバック割り当て1:(モードA、Npd=10、MRI=2、MPI=2、NOFFSET,CQI=0、NOFFSET,RI=−1、NOFFSET,PI=−1、{Cell−1、Cell−2、Cell−3、Cell−4})
■ フィードバック割り当て2:(モードA、Npd=10、MRI=2、MPI=2、NOFFSET,CQI=3、NOFFSET,RI=−1、NOFFSET,PI=−1、{Cell−1、Cell−2、Cell−3、Cell−4})
■ フィードバック割り当て3:(モードG、Npd=10、MRI=2、NOFFSET,CQI=6、NOFFSET,RI=−1、{フィードバック割り当て1、フィードバック割り当て2})
Claims (1)
- ランク指示子(rank indicator:RI)を送信する方法であって、
第1のチャネル測定情報と第1のチャネル干渉情報を含む第1のチャネル状態情報(channel stat information:CSI)構成情報を確認するステップと、
第2のチャンネル測定情報と第2のチャンネル干渉情報を含む第2のCSI構成情報を確認するステップと、
前記第1のCSI構成情報に対する第1のRIを生成し、前記第2のCSI構成情報に対する第2のRIを生成するステップと、
前記第1のRI及び前記第2のRIのうちの少なくとも一つを送信するステップと、を含み、
前記第1のCSI構成情報は、前記第2のCSI構成情報の参照(reference)CSI構成情報として使用され、前記第1のRI及び前記第2のRIは同一であることを特徴とすることを特徴とするRI送信方法。
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US201161546294P | 2011-10-12 | 2011-10-12 | |
US61/546,294 | 2011-10-12 | ||
US201161547294P | 2011-10-14 | 2011-10-14 | |
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KR10-2011-0113894 | 2011-11-03 | ||
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KR10-2011-0117483 | 2011-11-11 | ||
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KR10-2012-0008868 | 2012-01-30 | ||
KR1020120008868A KR20130039644A (ko) | 2011-10-12 | 2012-01-30 | 통신 시스템에서의 피드백 송수신 방법 및 장치 |
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JP2014530580A (ja) | 2014-11-17 |
KR20140072884A (ko) | 2014-06-13 |
RU2597241C2 (ru) | 2016-09-10 |
ZA201402930B (en) | 2015-11-25 |
AU2012321480B2 (en) | 2016-07-28 |
KR20190015613A (ko) | 2019-02-13 |
KR102077240B1 (ko) | 2020-02-14 |
JP5969037B2 (ja) | 2016-08-10 |
CN107682137A (zh) | 2018-02-09 |
KR101946539B1 (ko) | 2019-02-11 |
JP6249503B2 (ja) | 2017-12-20 |
CN107682137B (zh) | 2020-12-25 |
KR20200017550A (ko) | 2020-02-18 |
AU2012321480A1 (en) | 2014-03-13 |
CN104040907B (zh) | 2017-11-17 |
IN2014KN00961A (ja) | 2015-10-09 |
CA2851480A1 (en) | 2013-04-18 |
KR20130039644A (ko) | 2013-04-22 |
CN104040907A (zh) | 2014-09-10 |
KR102130816B1 (ko) | 2020-07-06 |
RU2014118580A (ru) | 2015-11-20 |
CA2851480C (en) | 2021-05-11 |
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